@keyframes jump {
  0% {
    transform: translateY(0);
  }
  10% {
    transform: translateY(-50%);
  }
  20% {
    transform: translateY(0);
  }
  100% {
    transform: translateY(0);
  }
}

.container {
  padding: 0 0.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.main {
  padding: 5rem 0;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.footer {
  width: 100%;
  height: 100px;
  border-top: 1px solid #eaeaea;
  display: flex;
  justify-content: center;
  align-items: center;

  a {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-grow: 1;
  }
}

.title {
  margin: 0;
  line-height: 1.15;
  font-size: 4rem;

  * {
    transition: 0.3s;
  }

  .highlight {
    color: #0070f3;
    text-decoration: none;
    &:hover,
    &:focus,
    &:active {
      text-decoration: underline;
    }
  }

  .jump {
    display: inline-block;
    animation-name: jump;
    animation-iteration-count: infinite;
    animation-duration: 3s;
    animation-play-state: running;
  }
}

.title,
.description {
  text-align: center;
}

.description {
  line-height: 1.5;
  font-size: 1.5rem;
}

.code {
  background: #fafafa;
  border-radius: 5px;
  padding: 0.75rem;
  font-size: 1.1rem;
  font-family: Menlo, Monaco, Lucida Console, Liberation Mono, DejaVu Sans Mono,
    Bitstream Vera Sans Mono, Courier New, monospace;
}

.grid {
  display: flex;
  align-items: stretch;
  justify-content: start;
  flex-wrap: wrap;
  max-width: 800px;
  margin-top: 3rem;
}

.card {
  margin: 1rem;
  padding: 1.5rem;
  text-align: left;
  color: inherit;
  text-decoration: none;
  border: 1px solid #eaeaea;
  border-radius: 10px;
  transition: color 0.15s ease, border-color 0.15s ease;
  width: 45%;

  &:hover,
  &:focus,
  &:active {
    color: #0070f3;
    border-color: #0070f3;
  }

  h2 {
    margin: 0 0 1rem 0;
    font-size: 1.5rem;
  }

  p {
    margin: 0;
    font-size: 1.25rem;
    line-height: 1.5;
  }
}

.logo {
  height: 1em;
  margin-left: 0.5rem;
}

@media (max-width: 680px) {
  .title {
    font-size: 3rem;
  }
  .grid {
    width: 100%;
    flex-direction: column;
    align-items: center;
  }
  .card {
    width: 80%;
  }
}
